baber/WOPTO huggingface dataset:
Patent JP-S62240808-A (JP)
Title: Discriminating apparatus for state of road surface
Inventor: FUJIMURA KEIJI
IPC: E01C23/01
Filed: 1986-04-11
Abstract: PURPOSE:To enable the accurate discrimination of the state of a road surface even when the intensity of reflection from the road surface is large, by amplifying the outputs of first and second light-receiving elements by means of first and second amplifiers having variable gains respectively, and by detecting the output of amplification thereof separately. CONSTITUTION:A light is emitted at a substantial Brewster angle to the normal line of a road surface, the horizontally-polarized and vertically-polarized components of are flected light are received by light-receiving elements A and B, and the outputs thereof are amplified 11a, 11b, filtered 12a, 12b and detected 13a, 13b, respectively. On the occasion, there is a possibility of an amplifier circuit 11a being saturated when the intensity of reflection of the road surface is large. This saturation is prevented by a method wherein an output from a detector 13a is given to a gain control voltage generator circuit 17 and the gain of the circuit 11a is reduced by a gain control voltage led out of the circuit 17. The gain control voltage is given also to an amplifier circuit 11b so as to control the gain thereof. The outputs from the circuits 11a and 11b whose gains are controlled in this way are given to a processing circuit 15 through BPF 12a, 12b and detectors 13a, 13b, the degree of polarization (the ratio of the difference between the horizontally-polarized and vertically-polarized components to the sum thereof) is calculated, and the state of the road surface corresponding thereto can be displayed 16.
Patent JP-S60228117-A (JP)
Title: Mold for vacuum injection molding
Inventor: MORIKITA NOBUO
IPC: B29C45/34
Filed: 1984-04-26
Abstract: PURPOSE:To prevent an airtight material from releasing at the time of mold breaking, by providing an undercut part in a charging groove of the airtight material to be provided at a position surrounding a cavity of a parting surface of a mold. CONSTITUTION:An undercut part 22 is formed in a charging groove 11 of an airtight material, in a mold provided with the groove 11 at a position surrounding a cavity 10 on a parting surface 9 of the mold 7. Then the airtight material 12 is also made into a shape capable of fitting in the undercut part 22.
Patent JP-S59229910-A (JP)
Title: Amplifier circuit
Inventor: KAMIMURA TAKUZOU
IPC: H03F3/68
Filed: 1983-05-13
Abstract: PURPOSE:To form an amplifier circuit and a feedback circuit into a single body and to obtain an amplifier circuit which is suited to an integrated structure, by amplifying individually the signals having phases opposite to each other and supplying the current having the same phase as the amplified signal to a load via a current inverting circuit. CONSTITUTION:The signal currents having phases opposite to each other are applied to input terminals 20 and 22, and the current corresponding to the signal current flows to transistors TR12 and 14. At the same time, the signal currents applied to the terminals 20 and 22 are turned into the base currents of TRs24 and 26. The currents flowing to the TRs26 and 24 flow to TRs34 and 38 via current inverting circuits 28 and 30. As a result, a current equivalent to the signal current of the TR14 is supplied to the TR34 and then flows to the TR14 from the TR34 via a load 42. While a current equivalent to the signal current of the TR12 flows to the TR38 and then flows to the TR38 from the TR12 via the load 42. Therefore a current having an amplitude double as much as the amplitude of each synthetic current is supplied to the load 42.
Patent JP-S62241568-A (JP)
Title: Bottom discharge type centrifugal separator
Inventor: IGAWA KENJI
IPC: B04B3/00
Filed: 1986-04-11
Abstract: PURPOSE:To prevent the generation of a complex air stream or vortex stream by providing a couple of band-like plates to the inner diameter of a chute along the vertical face while keeping a sufficient interval in the upper and lower parts. CONSTITUTION:In a bottom discharge type centrifugal separator suitable for continuous operation or sequential control batch operation, a rectification plate 32 is formed by fitting a couple of band-like plates 30 to the inside of a chute 16 along the vertical face while keeping an interval in the upper and lower parts. When providing the rectification plate in such a way, the generation of a vortex stream directed to the lower part of the chute 16 is remarkably reduced while a basket 20 is rotated. Therefore the scatter of dust and the volatilization of liquid chemicals are prevented. Further since the rectification plate is rectangularly crossed to a plate constituting the chute, the mechanical strength of the chute in reinforced and the chute is made more lightweight and inexpensive.
Patent JP-S61242043-A (JP)
Title: Semiconductor integrated circuit
Inventor: SEKINE TOKUO
IPC: H01L23/52
Filed: 1985-04-19
Abstract: PURPOSE:To enable to perform a high-temperature heat treatment and to prevent the short-circuit between the lower and upper wirings of the multilayer wiring from generating due to a defect in the interlayer insulating film and so forth by a method wherein the lower wiring layers are formed of silicide films and silicide oxide films are formed on the surfaces of the silicide films. CONSTITUTION:The lower wiring layers 4 of the multilayer wiring layer are formed of silicide films and the surfaces of the silicide films are covered with silicide oxide films 5. If so, the silicide films are high-melting point ones and are silimilar to a silicon film in physical property as well and the resistivity thereof drops by about one digit. By this way, a high-temperature heat treatment becomes possible. Moreover, the short-circuit between the lower wirings 4 are an upper wiring 7 can be prevented by the silicide oxide films.
Patent JP-H02262713-A (JP)
Title: Clock pulse generation circuit
Inventor: NAKAMURA AKI
IPC: H03K5/01
Filed: 1989-04-03
Abstract: PURPOSE:To obtain a clock pulse with an arbitrary duty ratio by performing the waveform arrangement of oscillation output by supplying a DC bias after converting to a waveform near to a sine wave by a filter. CONSTITUTION:The clock pulse B with a duty ratio of 33% outputted from an OSC 1 is inputted to an LPF 2, and a component other than the fundamental frequency of the clock pulse B is attenuated at the LPF, and is outputted after being converted to a signal F of waveform near to the sine wave. Next, the signal F is inputted to a waveform arranging circuit 3, and the DC component of the signal is cut by a capacitor 31, and a signal G of waveform setting the mean value of a DC voltage level V supplied from a voltage source 33 as a threshold voltage V1 is inputted to a logical element 34. Thereby, the clock pulse E with a duty ratio of 50% can be obtained.
Patent JP-H07289005-A (JP)
Title: Tiller
Inventor: HOSHIHARA HIROFUMI
IPC: A01B33/12
Filed: 1994-04-22
Abstract: PURPOSE:To provide a tiller capable of sufficiently withstanding vibration in tilting operation by reinforcing strength of a tilting part cover itself and preventing deformation of a cover ceiling due to vibration in tilling operation and preventing a welded part between a cover side plate and a cover ceiling plate from causing cracking by breakage due to fatigue or preventing a cover ceiling from being separated. CONSTITUTION:A tilting part cover 15 for covering the upper part of a rotary tilting body 13 is fixed between lateral brackets 3 of a machine frame 1. The tilling part cover 15 has lateral cover side plates 16 arranged and fixed in lateral brackets 3 and a cover ceiling plate 17 curved in arc shape toward the upper part is fixed between lateral cover side plates 16. Reinforcing bodies 20 and 40 in the lateral direction are detachably or integrally provided along the upper part on the front side of the cover ceiling plate 17. Lateral hitch arms 5 of a machine frame 1 are connected to lateral parts of the reinforcing body 20. The upper end part of an elastic cover 24 is held by the cover ceiling plate 17 and these reinforcing bodies 20 and 40.
Patent JP-S61244846-A (JP)
Title: Solenoid valve control circuit
Inventor: OKA HIROKI
IPC: F02D41/00
Filed: 1985-04-20
Abstract: PURPOSE:To permit the warming operation of an internal-combustion engine according to the temperature condition by installing a selecting circuit for judging the output states of a temperature detecting circuit and a timing circuit, in a control circuit for a solenoid valve for controlling the intake of an internal- combustion engine. CONSTITUTION:A timing circuit 21 is started by the start of an internal-combustion engine. A temperature detecting circuit 22 is equipped with a thermistor TH1 for detecting the temperature of an internal-combustion engine. A selecting circuit 23 is equipped with diodes D1 and D2 and judges the output states of the temperature detecting circuit 22 and the timing circuit 21. An output circuit 24 receives the output of the selecting circuit 23 and excitation-controls the solenoid L of a solenoid valve. Thus, the internal-combustion engine can be warming-operated in accordance with the temperature condition.
Patent JP-H11298086-A (JP)
Title: Semiconductor laser device
Inventor: ASANO HIDEKI
IPC: H01S5/34
Filed: 1998-03-31
Abstract: PROBLEM TO BE SOLVED: To improve reliability for high-power oscillation of a 1.0 μm-band semiconductor laser. SOLUTION: An n-In0.48 Ga0.52 P cladding layer 2, an n or i-Inx1 Ga1-x1 As1-y1 Py1 optical waveguide layer 3, an i-GaAs1-y1 Py2 tensile distortion barrier layer 4, a compression distortion Inx3 Ga1-x3 As1-y3 Py3 quantum well active layer 5, and an i-GaAs1-y2 Py2 tensile distortion barrier layer 6, a p or i-Inx1 Ga1-x1 As1-y1 Py1 optical waveguide layer 7, a p-In0.48 Ga0.52 P cladding layer 8, a p-GaAs contact layer 9 are formed in sequence on an n-GaAs substrate 1. In this case, the cladding layers 2 and 8 and the optical waveguide layers 3 and 7 are respectively formed by a composition with lattice which matches with the substrate 1, and the thickness of the tensile distortion barrier layers 4 and 6 is 10-30 nm, so that the amount of distortion of tensile distortion relative to the substrate 1 is equal to (distortion amount)×(film thickness) which equals 5-20% nm.  The thickness of the active layer 5 is 6-10 nm, and the amount of distortion of compression distortion relative to the substrate 1 is 1.0% or more. The composition is such that the sum of the product of amount of distortion and the film thickness is larger than the product of the amount of distortion and the film thickness of the quantum well active layer.
Patent JP-S58201127-A (JP)
Title: Apl superposed character inputting system
Inventor: MIURA HIRONOBU
IPC: G06F3/02
Filed: 1982-05-20
Abstract: PURPOSE:To input an APL character superposed character) by single key operation, by depressing an APL key provided on a keyboard, and inputting the APL character to the APL program in a main storage device. CONSTITUTION:When the APL character key 13 provided to the keyboard part 3 is depressed, its signal is sent to the character signal discrimination part 14 of a control part 8. The character signal discriminating part 14 once discriminating the APL character passes the control to an APL character controlling part 15 to discriminate the kind of the APL, which is divided into three codes, i.e. the 1st character code, backspace code, and the 2nd character code; and an output code is composed of them and sent to an output signal transmitting part 16 to be outputted. This output is supplied to the APL program in the main storage device which is not shown in a figure. For example, the APL character is formed by putting ''-'', ''backspace'', and ''V''. Consequently, the APL character is generated by single key operation and the operability is improved.
Patent JP-S58201716-A (JP)
Title: Antitumor agent
Inventor: MORIKAWA TAMIO
IPC: C07H15/04
Filed: 1982-05-19
Abstract: NEW MATERIAL:A nitrosourea derivative of formula I (R<1> is alkyl; R<2> is alkyl, alcoxyalkyl). EXAMPLE:1-( 2-Chloroethyl )-1-nitroso-3-n-butyl-3-( methyl-alpha-D-glucopyranosid-2-yl) urea. USE:An antitumor agent: it shows antitumor effect against Ehrlich sarcoma, sarcoma 180, leukemia L-1210, Lewis lung cancer, Yoshida sarcoma and other various cancer cells to prolong the survival time of warm-blood animals and inhibit the propagation of tumor cells. It is also used as a remedy for malignant tumors such as lymphoma, leukemia or stomach cancer. PREPARATION:A urea derivative of formula II is nitrosated by a customary method to give the compound of formula I .
Patent JP-H01259281-A (JP)
Title: Reflection video display device
Inventor: UMIGA KAZUHIKO
IPC: G01S7/06
Filed: 1988-04-08
Abstract: PURPOSE:To enable display operation even when a sampling point is distant by enabling the individual operations of the time constants of the trailing edge and leading edge of a reflection video pulse and varying the time constant of the trailing edge with the largest measured distance. CONSTITUTION:A video pulse width expanding circuit consists of a low-pass filter 11, a peak holder circuit 12, and a buffer circuit 13. For a long or intermediate distance, a changeover switch 121 is placed on a side (e) and a changeover switch 122 is placed on a side (g) or (h). When a negative video pulse is applied to an input terminal 10, a capacitor C0 is charged with the pulse leading edge and in this case, resistances R1 and R2 are larger than a resistance R0, so the operation is the same with a short distance. A diode D2, however, disconnects the discharge path of a transistor Q1 in case of the short distance with the pulse trailing edge, so the discharging is carried out through the resistances R1 and R2. For the purpose, the resistance R1 and R2 are set large to increase the length of the wave tail.
Patent JP-S569882-A (JP)
Title: Error preventing method of curve tracing
Inventor: KANEKO TAKAFUMI
IPC: G06K11/00
Filed: 1979-07-05
Abstract: PURPOSE: To prevent an error in curve tracing when time-numeral curves are traced by an electronic eye by tracing those curves by regarding as startin points initial points of curves obtained by shifting the time axis of the above-mentioned curve in parallel.  
     CONSTITUTION: A chart on which curves (a)W(d) are drawn having time axes shifted in parallel is made and wound around a chart drum in the time axial direction. When curve (b) is used, the chart drum is turned to set starting point t b  and then operation is started. As a result, curve intervals are enough, so that the error of misreading the adjacent curve will never be made in tracing by an electronic eye. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H10276840-A (JP)
Title: Lifting device for wagon desk with raisable top board
Inventor: TOKUDA TAIICHI
IPC: A47B31/00
Filed: 1997-04-03
Abstract: PROBLEM TO BE SOLVED: To provide a lifting device such that a raisable top board can be adjusted in height in a number of steps at practically permissible intervals and be securely supported, and that cost is reduced through the simplification of a mechanism. SOLUTION: A hollow support rod 8 secured to a raisable top board 5 at its upper end is vertically movably passed through a hollow guide rod 7 vertically provided inside each side plate of a main body portion 2, and a control rod 19 which only moves up and down as a control lever 18 placed near the lower surface of the raisable top board 5 is operated is vertically placed inside the support rod 8.  An engaging member 21 from one side of which an engaging claw is projected is placed in the lower portion of the inside of the support rod 8 in such a way as to be capable of being slid horizontally by a guide member 20 secured to the support rod 8, a pin 26 projected from the control rod 19 is engaged in an inclined oblong hole formed in the engaging member, and the engaging member is elastically energized so that the engaging claw is passed through the support rod 8, projected, and engaged in each of engaging holes 14 formed in the side face of the guide rod 7 at equal intervals along the vertical direction.
Patent JP-H06272166-A (JP)
Title: Moisture-permeable and waterproof fabric
Inventor: FURUTA TSUNEKATSU
IPC: B32B5/24
Filed: 1993-03-18
Abstract: PURPOSE:To obtain the subject fabric bearing thermal insulation and, in addition, low in in-clothing stuffy feel. CONSTITUTION:This fabric is so designed that a finely porous resin film is formed on a fabric containing fine particles capable of absorbing light energy and radiating far-infrared rays. This fabric has a moisture-permeable degree of >=200g/m<2>hr. The fabric manifests thermal insulation after exercises involving much perspiration even in winter season and further a suppressed humidity rise inside of the clothing made of this fabric, thus lowers stuffy feeling even in the case of such a use.
Patent JP-S5850892-A (JP)
Title: Phase inversion type porous speaker cabinet
Inventor: YAMAGATA KIYOSHI
IPC: H04R1/28
Filed: 1981-06-02
Abstract: PURPOSE:To generate a composite sound excellently in external space and to obtain wide-range stereophonic sound quality by providing a partitioning plate for partitioning a cabinet body into an upper and a lower area, and forming an opening hole for communication between the upper and lower areas in the partitioning plate. CONSTITUTION:A partitioning plate 2 is provided to partition the inside of a cabinet body 1 into an upper and a lower area. In an upper baffle plate 3, a speaker fitting hole 5 is formed at one left or right side, and the 1st opening hole 6 is made at the other side; and the 2nd opening hole 7 is formed in a lower baffle plate corresponding to the 1st opening hole 6, and the 3rd opening hole 8 is provided at a position which corresponds to the speaker fitting hole 5. Acoustic plates of different kinds are provided corresponding to the respective opening holes, and the 4th opening hole 6 and 2nd opening hole 7, so the sound path is extended to perform low-frequency-range reproduction, thereby improving sound quality and timber. sound of the speaker fitting hole and plural opening holes is radiated while preventing deterioration in transient characteristics internally, so a composite sound is generated in the external space.
Patent JP-H05290987-A (JP)
Title: Driving circuit of cold cathode tube
Inventor: SANO TAKESHI
IPC: H05B41/24
Filed: 1992-04-07
Abstract: PURPOSE:To achieve change in voltage of a pulse by changing a resistance value according to the temperature of a discharge tube by providing a heat sensitive element on a supply line of a high voltage pulse. CONSTITUTION:A thermistor TH1 is inserted between a step-up transformer terminal 6 and a positive electrode P1 of a cold cathode tube FL1. When the ambient temperature or the temperature of FL1 is high, the resistance value of TH1 becomes high, and when the temperature is low, the resistance value of TH1 becomes low. When the temperature is high, the voltage applied to FL1 becomes low, and when the temperature is low, the voltage applied to FL1 becomes high, and it is so controlled that FL1 is lighted at a fixed luminance. Even when the temperature of the cold cathode tube or the ambient temperature is changed, a change in the luminance of the cold cathode tube or in the color temperature is thus suppressed.
Patent JP-S62241673-A (JP)
Title: Abrasive tape
Inventor: YAMAGUCHI NOBUTAKA
IPC: B24D11/00
Filed: 1986-04-14
Abstract: PURPOSE:To secure such an abrasive tape that is less in abrasion and capable of holding the extent of polishing performance for hours, by forming an abrasive layer containing dialkylketone as an abrasive agent, a binding agent and an additive agent, in the case of the polishing abrasive tape for a magnetic head or the like. CONSTITUTION:An abrasive tape 1 is constituted of a support body 2 having flexibility and an abrasive layer 3 applied onto this support body 2. The abrasive layer 3 is one that is formed after kneading an abrasive material 4, a binder and additive agent together. This abrasive tape 1 is one that makes the abrasive layer 3 slide on a workpiece, for example, on a polished surface of a magnetic head 5 and then smoothly polishes the polished surface by the abrasive material 4 projected out of a surface of the abrasive layer 3. The said abrasive material 4 is desirable to use such one that is more than Moh's hardness 8 in general, and it is also desirable that the Moh's hardness is altered according to a difference in abrasive purposes such as rough polish, finish polish, etc. In this connection, the said additive agent contains dialkylketone (a lubricant) of a structural formula of R-CO-R' (R. R' is aliphatic alkyl of 5-23 in carbon numbers).
Patent JP-H04318523-A (JP)
Title: Thin film transistor type liquid crystal display device
Inventor: OGURA SHIGEKI
IPC: H01L29/786
Filed: 1991-04-17
Abstract: PURPOSE:To eliminate a DC component between the drain electrode and counter electrode of a thin film transistor(TFT) type liquid crystal display and to reduce a drop in picture element electrode due to the parasitic capacity between the gate and source. CONSTITUTION:A shield electrode is formed over the entire surface of the drain electrode 2 of the TFT except the connection part between the source electrode 4 and picture element electrode 5 across an insulating film. Then the shield electrode 7 is connected electrically to a counter electrode. Consequently, the drain electrode 2 and counter electrode are disconnected electrically by the shield electrode, so no DC component is generated between them. Further, accumulation capacity is formed between the picture element electrode 5 and shield electrode, so the drop in picture element electrode voltage due to the parasitic capacity between the gate and source is reduced.
Patent JP-H07270589-A (JP)
Title: Sintering furnace for nuclear fuel pellet
Inventor: MATSUNAGA CHIAKI
IPC: F27B9/24
Filed: 1994-03-30
Abstract: PURPOSE:To provide a sintering furnace for nuclear fuel pellet equipped with a walking beam mechanism for transferring a sintering board stepwise in the furnace rn which both the maintenability of the walking beam mechanism and the layout of a sintering system are improved. CONSTITUTION:A maintenance chamber 14 housing a walking beam mechanism is formed under the sintering furnace 1 communicating with a space part 8a where a driver 10 is disposed. An elevating unit 15 elevates the walking beam mechanism to the maintenance chamber 14 and lowers the mechanism therefrom freely. When the walking beam mechanism is elevated, the base 16 thereof closes the upper part of the maintenance chamber 14 thus interrupting the maintenance chamber 14 from the space part 8a.
Patent JP-S5312291-A (JP)
Title: Method and device for taking sectional photograph
Inventor: SHIMON DOUINKAA
IPC: A61B6/03
Filed: 1977-07-19
Abstract: Flat out fanning beams of penetrating radiation in the plane of a slice of an object are bounded on one side by an axis of rotation through the object and extend on the other side past the object exterior. These beams are produced at corresponding angles of the rotation and impinge upon a continuous detector surface which is scanned at each angle to generate half profile signals which may then be processed to produce parallized profile signals.